[aotte1]

Some of the issues have gotten better, they are:
- torque converter/transmission shift point, much better at 2800 miles. It will now upshift gears at 1200 RPMs, and converter seems to lock up at much lower RPMs. This change occurred around 2500 miles. Not sure why??? Transmission computer program came new stupid and needs to learn?, safety programmed to not load engine when new?, other??? It shift points now nice, versus new awful.
-gas mileage, a little more outstanding, as good as 28 mpg.

Still bad:
- the transmission or rear end hard clunk randomly . I mean hard, worse then my 1070 NHRA stocker race car. The two 2017 we have both do it, bad! May only do it under light acceleration in lower gears, low speed. Does it both upshifting and down shifting.
- WOT acceleration is disappointing, for rated HP, it seems weak, and does not know which trans gear to be in, and not giving you full power. Accelerates quicker and stronger at only 3/4 throttle. Our 2010 feels much faster by a lot. HP rating seam weak for towing too. Have not done much, only 5K lbs. If towing some, would recommend considering the 6.2 engine. Did not drive a 6.2, so can not say for sure if a good choice.

Overall option still out, wife really likes it, first Truck she has liked. Want to take it all the time.

Will update more in a few months. Have 2800 miles on it at 8 months. For me it is the last vehicle I choose to drive. Choose first the: Corvette, 2010 Silverado, 2015 Acadia ( starting to like it more- sure wish it had a V8), before 2017 Silverado Crew Cab.